package com.zxy;

public class trY01 {
    public static void main(String[] args) {
        String s1 = "aBSDVBdsgSDjf";
        String s2 = "aBSDVbdsgSDjf";
        System.out.println(s1.equals(s2));
        System.out.println(s1.equalsIgnoreCase(s2));
        System.out.println(s1.toLowerCase());
        System.out.println(s2.toUpperCase());
    }
}
